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Nat2105 [25]
3 years ago
7

I need the answer and the work please !!!

Mathematics
1 answer:
algol [13]3 years ago
6 0
2a.) 8.8 x 4 = 35.2g
2b.) 35.2 x 30 = 1056g or 1.056kg
You might be interested in
A Mercedes can go 78 miles on 3 gallons of gas. How far can it go with a full tank of 16 gallons?
Alex787 [66]

Answer:

416 miles

Step-by-step explanation:

78 divided by 3 = 26

26 x 16 = 416

5 0
2 years ago
What is the value of the expression:20×5+[27+4)-(36-9)] to the power of 2
kramer

The answer is 498530

6 0
3 years ago
In Exercises 23–36, solve the system using either Gaussian elimina- tion with back-substitution or Gauss-Jordan elimination. 23.
Luba_88 [7]

Answer:

23) x= 3, y = 4

24) Any (x,y) values where x = 1.5 - 2y

Step-by-step explanation:

For the first system(23), it goes like this

[1 2 | 7]

[2 1 | 8]

We need to do L2 = L2 - 2L1, so now it is

[1 2   | 7]

[0 -3 |-6]

So, now we have:

-3y = -6 *(-1)

3y = 6

y = 2

x + 2y = 7

x + 4 = 7

x = 3

Now for system 24, we have:

[-1 2 | 1.5]

[2 -4| 3]

We do L2 = L2 + 2L1, so we have:

[-1 2 | 1.5]

[0 0| 0]

So there are infinite solutions for this system. The solution for this system will be each (x,y) pair where x = 1.5 - 2y.

5 0
3 years ago
Substitute x=-4 into the expression 5x-x+8
Natasha2012 [34]

Answer:

-8

Step-by-step explanation:

5(-4)-(4)+8

-20+4+8

-20+12

-8

5 0
2 years ago
Read 2 more answers
a recent study shows that people spend about 31% of their time asleep. About how much time will a person spend asleep during an
makvit [3.9K]

Answer:

78×31%= approximately 24 years

Step-by-step explanation:

6 0
3 years ago
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